Application And Integration Of A GPU Server System

ABSTRACT

A graphics processing unit (GPU) server having a GPU host head with one or more host graphics processing units (GPUs). The GPU server further has a GPU system with a plurality of system GPUs that are separate from the host GPUs, and that are configured to rapidly accelerate creation of images for output to a display device. The GPU server also has a mounting assembly that integrates the GPU host head and the GPU system into a single GPU server unit. The GPU host head is independently movable relative to the GPU system.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. § 119 to and thebenefit of U.S. Provisional Patent Application Ser. No. 62/954,370,filed on Dec. 27, 2019, and titled “The Application and Integration ofGPU Server System,” which is incorporated herein by reference in itsentirety.

FIELD OF THE INVENTION

The present invention relates generally to installation of a graphicsprocessing unit (“GPU”) system, and, more specifically, to integrationof a GPU host head with a GPU system having one or more graphicsprocessing units (“GPUs”) into a GPU unit server.

BACKGROUND OF THE INVENTION

Present server systems are problematic because they typically requireinstallation of individual major components that include a host head andone or more GPUs, which are separate from the host head itself. Theindividual components limit installation efficiency and maintenanceassociated with the server system. For example, the installation of eachsuch individual GPU requires setup of a respective chassis, therebyincreasing setup time and expense.

Present server systems are further problematic because they alsotypically require cables that are routed external to respective supportcages of the GPUs. These cables are costly and are poorly routed,thereby unnecessarily increasing expenses and management time forproperly routing the cables when installing, removing, or otherwisemanaging the server systems.

The present disclosure is directed to providing a server system thatsolves the above problems and other needs.

SUMMARY OF THE INVENTION

The term embodiment and like terms are intended to refer broadly to allof the subject matter of this disclosure and the claims below.Statements containing these terms should be understood not to limit thesubject matter described herein or to limit the meaning or scope of theclaims below. Embodiments of the present disclosure covered herein aredefined by the claims below, not this summary. This summary is ahigh-level overview of various aspects of the disclosure and introducessome of the concepts that are further described in the DetailedDescription section below. This summary is not intended to identify keyor essential features of the claimed subject matter. This summary isalso not intended to be used in isolation to determine the scope of theclaimed subject matter. The subject matter should be understood byreference to appropriate portions of the entire specification of thisdisclosure, any or all drawings and each claim.

According to one aspect of the present disclosure, a graphics processingunit (GPU) server has a GPU host head with one or more host graphicsprocessing units (GPUs). The GPU server further has a GPU system with aplurality of system GPUs that are separate from the host GPUs. Thesystem GPUs are configured to rapidly accelerate creation of images foroutput to a display device. The GPU server also has a mounting assemblythat integrates the GPU host head and the GPU system into a single GPUserver unit. The GPU host head is independently movable relative to theGPU system

According to an implementation of the aspect disclosed above, the GPUhost head has two GPUs, and the GPU system has four GPUs, the GPU serverhaving a total of six GPUs. According to another implementation of theaspect disclosed above, the mounting assembly includes a pair ofL-shaped frame brackets via which the GPU host head is mechanicallyconnected to the GPU system.

According to a configuration of the implementation disclosed above, thepair of L-shaped frame brackets includes a left bracket and a rightbracket. Each of the L-shaped frame brackets has a vertical wall that ismechanically connected to a respective side wall of the GPU host head.Each of the L-shaped frame brackets further has a horizontal wall thatis mechanically connected to a top surface of the GPU system.

According to yet another configuration of the implementation disclosedabove, the GPU server further has a pair of host rails. Each host railis fastened to a respective side wall of the GPU host head via one ormore removable fasteners. The GPU server further has a pair of bracketrails. Each bracket rail is fastened to a respective one of the pair ofL-shaped frame bracket via one or more permanent fasteners. According toa more specific configuration, the one or more removable fasteners arescrews, and the one or more permanent fasteners are rivets.

According to yet another configuration of the implementation disclosedabove, the GPU server further has a cable management arm (CMA) that isattached on a top surface of the GPU system near a rear surface of theGPU system. According to a more specific configuration, an enclosurecover is mounted over the CMA, the enclosure having two sides that areattached to respective rear ends of the pair of L-shaped frame brackets.According to another specific configuration, the enclosure coverincludes two spring latches that are configured to removably attach theenclosure cover to the respective rear ends of the pair of L-shapedframe brackets.

According to yet another implementation of the aspect disclosed above,the GPU host head has a movable cover that swings between a closedposition and an open position. The movable cover protects, in the closedposition, one or more fans that are mounted within the GPU host head.

According to a configuration of the above implementation, the movablecover includes a latch that has a locked position and an unlockedposition. According to another configuration of the aboveimplementation, the movable cover swings along a rotation shaft that ismounted to a top surface of the GPU host head.

According to yet another implementation of the aspect disclosed above,the GPU server further has a power supply unit (PSU) cage that isattached between the GPU host head and the GPU system. The PSU cageoverlays over a majority of a top surface of the GPU system.

According to yet another implementation of the aspect disclosed above,the GPU server has a hard disk drive (HDD) cage that is attached to arear surface of the GPU system.

According to another aspect of the present disclosure, a method isdirected to assembling a graphics processing unit (GPU) server. Themethod includes providing a GPU host head with one or more host graphicprocessing units (GPUs). The method also includes providing a GPU systemwith a plurality of system GPUs that are separate from the host GPUs.The system GPUs are configured to rapidly accelerate creation of imagesfor output to a display device. The method further includes integrating,via a mounting assembly, both the GPU host head and the GPU system intoa single GPU server unit. The GPU host head is independently movablerelative to the GPU system.

According to an implementation of the aspect disclosed above, the methodfurther includes attaching a first L-shaped frame bracket to a firstside of the GPU host head and to a top surface of the GPU system. Themethod also includes attaching a second L-shaped frame bracket to asecond side of the GPU host head and to the top surface of the GPUsystem.

According to a configuration of the implementation disclosed above, themethod includes removably fastening a first host rail between the firstL-shaped frame bracket and the first side of the GPU host head. Themethod also includes removably fastening a second host rail between thesecond L-shaped frame bracket and the second side of the GPU host head.The method further includes permanently fastening a first bracket railon an exterior surface of the first L-shaped frame bracket. The methodfurther includes permanently fastening a second bracket rail on anexterior surface of the second L-shaped frame bracket.

According to another implementation of the aspect disclosed above, themethod further includes attaching a cable management arm (CMA) to a topsurface of the GPU system near a rear surface of the GPU system. Themethod also includes mounting an enclosure cover over the CMA.

According to yet another implementation of the aspect disclosed above,the method further includes mounting a movable cover to a top surface ofthe GPU host head, the movable cover rotating between a closed positionand an open position. The method also includes providing a latch on themovable cover for locking or unlocking the movable cover relative to theGPU host head.

According to yet another implementation of the aspect disclosed above,the method further includes attaching a power supply unit (PSU) cagebetween the GPU host head and the GPU system. The method also includesattaching a hard disc drive (HDD) cage to a rear surface of the GPUsystem.

The above summary is not intended to represent each embodiment or everyaspect of the present disclosure. Rather, the foregoing summary merelyprovides an example of some of the novel aspects and features set forthherein. The above features and advantages, and other features andadvantages of the present disclosure, will be readily apparent from thefollowing detailed description of representative embodiments and modesfor carrying out the present invention, when taken in connection withthe accompanying drawings and the appended claims. Additional aspects ofthe disclosure will be apparent to those of ordinary skill in the art inview of the detailed description of various embodiments, which is madewith reference to the drawings, a brief description of which is providedbelow.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure, and its advantages and drawings, will be betterunderstood from the following description of exemplary embodimentstogether with reference to the accompanying drawings. These drawingsdepict only exemplary embodiments, and are therefore not to beconsidered as limitations on the scope of the various embodiments orclaims.

FIG. 1 is a perspective view illustrating a single GPU server unit withintegrated GPU host head and GPU system.

FIG. 2 is a front view of the single GPU server unit.

FIG. 3 is a rear view of the single GPU server unit.

FIG. 4 is an exploded view of the single GPU server unit.

FIG. 5 is a perspective view of the single GPU server unit with anenlarged view showing attached rails.

FIG. 6 is a perspective view of the single GPU server unit beforeattaching a CMA.

FIG. 7 is a perspective view of the single GPU server unit with anenlarged view showing attachment of the CMA.

FIG. 8 is a perspective view illustrating the single GPU server unitmounted in a frame rack.

FIG. 9 is a perspective view illustrating the single GPU server unit ofFIG. 8 with a host head drawn out for fan maintenance.

FIG. 10 is a perspective view illustrating the single GPU server unit ofFIG. 9 with a movable cover in an open position for accessing a fan.

FIG. 11 is a perspective view illustrating the single GPU server unitwith a latch of the movable cover in an unlocked position.

FIG. 12 is an enlarged view of FIG. 11 showing a rotation shaft of themovable cover.

FIG. 13 is another enlarged view of FIG. 11 illustrating the removal ofa fan for maintenance.

FIG. 14 is a perspective view of the single GPU server unit showingattachment of a cable to a switch board

FIG. 15 is a perspective view of the single GPU server unit showingrouting of the cable of FIG. 14 through an attached HDD cage.

FIG. 16 is a perspective view of the single GPU server unit showingrouting of the cable of FIG. 15 through an attached PSU cage.

FIG. 17 is a perspective view of the single GPU server unit showingmanagement of the cable of FIG. 16 via attached CMA.

FIG. 18 is a top view of the single GPU server unit showing the cable ofFIG. 17 plugged into a GPU host head.

FIG. 19 is a perspective view of the single GPU server unit showingassembly of an enclosure cover.

FIG. 20 is an enlarged view of FIG. 19 illustrating a latch of theenclosure cover.

While the invention is susceptible to various modifications andalternative forms, specific implementations have been shown by way ofexample in the drawings and will be described in further detail herein.It should be understood, however, that the invention is not intended tobe limited to the particular forms disclosed. Rather, the invention isto cover all modifications, equivalents, and alternatives falling withinthe spirit and scope of the invention as defined by the appended claims.

DETAILED DESCRIPTION

Various embodiments are described with reference to the attachedfigures, where like reference numerals are used throughout the figuresto designate similar or equivalent elements. The figures are not drawnto scale and are provided merely to illustrate the instant invention.Several aspects of the invention are described below with reference toexample applications for illustration. It should be understood thatnumerous specific details, relationships, and methods are set forth toprovide a full understanding of the invention. One having ordinary skillin the relevant art, however, will readily recognize that the inventioncan be practiced without one or more of the specific details, or withother methods. In other instances, well-known structures or operationsare not shown in detail to avoid obscuring the invention. The variousembodiments are not limited by the illustrated ordering of acts orevents, as some acts may occur in different orders and/or concurrentlywith other acts or events. Furthermore, not all illustrated acts orevents are required to implement a methodology in accordance with thepresent invention.

Elements and limitations that are disclosed, for example, in theAbstract, Summary, and Detailed Description sections, but not explicitlyset forth in the claims, should not be incorporated into the claims,singly, or collectively, by implication, inference, or otherwise. Forpurposes of the present detailed description, unless specificallydisclaimed, the singular includes the plural and vice versa. The word“including” means “including without limitation.” Moreover, words ofapproximation, such as “about,” “almost,” “substantially,”“approximately,” and the like, can be used herein to mean “at,” “near,”or “nearly at,” or “within 3-5% of,” or “within acceptable manufacturingtolerances,” or any logical combination thereof, for example.

The present disclosure generally describes a graphics processing unit(GPU) server that integrates into a single GPU server unit twocomponents that were previously provided separately. Specifically, theGPU server integrates a GPU host head that is configured for computationof relative work and a GPU system that is configured to rapidlyaccelerate the creation of images for output to a display device. TheGPU host head includes one or more host graphics processing units(GPUs), and the GPU system includes a plurality of system GPUs.

The integration of the GPU host head with the GPU system improvesoperation behavior, including, for example, providing a faster setup ina frame rack. The faster setup is facilitated at least because theintegrated GPU server unit requires installation of a single chassis(relative to the previous requirement of installing two chassis).

According to another example, the disclosed GPU server is beneficial atleast because it further facilities easy management of cables. Forexample, the disclosed GPU server facilitates simple management of amini serial-attached SCSI (SAS) high-definition (HD) cable, which iseasily routed internally within the GPU server (relative to previousexternally routed cables). Additionally, the internal mini-SAS HD cableis less expensive than a comparative external mini-SAS HD cable. Thus,the disclosed GPU server reduces clutter and expenses associated withmessy and expensive external cables.

Referring to FIGS. 1-3 , a GPU host head 100 is integrated with a GPUsystem 102 to form a single GPU server unit 104. The GPU host head 100includes one or more host GPUs and the GPU system 102 includes aplurality of system GPUs. The system GPUs are configured to rapidlyaccelerate the creation of images for output to a display device.

According to one example, the GPU host head 100 has two GPUs and the GPUsystem 102 has four GPUs. Thus, according to this example, the GPUserver unit 104 has a total of six GPUs.

The GPU host head 100 has a pair of side walls that include a left sidewall 106 and a right side wall 107. The side walls 106, 107 extend alonga depth dimension D between a top surface 108 and a bottom surface 109.The side walls 106, 107 further extend along a height dimension Hbetween a front surface 110 and a rear surface 111. The side walls 106,107 are separated from each other by a width dimension W. The GPU hosthead 100 includes associated hardware components that generally from arespective chassis.

The GPU system 102 also has a pair of side wall that include a left sidewall 112 and a right side wall 113. The side walls 112, 113 extend alongthe depth dimension D between a top surface 114 and a bottom surface115. The side walls 112, 113 further extend along the height dimension Hbetween a front surface 116 and a rear surface 117. The side walls 112,113 are separated from each other by a width dimension W. The GPU system102 includes associated hardware components that generally from arespective chassis.

Referring to FIG. 4 , the GPU host head 100 is integrated with the GPUsystem 102 via a mounting assembly 118 that includes several components,including two L-shaped frame brackets. The two L-shaped frame bracketsinclude a left bracket 120 and a right bracket 121. Each bracket 120,121 has a respective vertical wall 120 a, 121 a and a respectivehorizontal wall 120 b, 121 b. For ease of disclosure, the terms“vertical” and “horizontal” are used in reference to one orientation ofthe brackets 120, 121. However, it is understood that the left and rightbrackets 120, 121 can be used in orientations in which the vertical andhorizontal walls 120 a, 121 a, 120 b, 121 b are not necessarily“vertical” and/or “horizontal.”

The left and right brackets 120, 121 extend along the depth dimension Dand are mechanically connected to the GPU server unit 104. The verticalwall 120 a of the left bracket 120 is mechanically connected to the leftside wall 106 of the GPU host head 100. The vertical wall 121 a of theright bracket 121 is mechanically connected to the right side wall 107of the GPU host head 100. The horizontal wall 120 b of the left bracket120 is mechanically connected to the top surface 114 of the GPU system102. The horizontal wall 121 b of the left bracket 120 is alsomechanically connected to the top surface 114 of the GPU system 102.

The mounting assembly 118 further includes a pair of host rails 122, 123and a pair of bracket rails 124, 125. The host rails 122, 123 includes aleft host rail 122 and a right host rail 123. The left host rail 122 isfastened to the left side wall 106 of the GPU host head 100 via one ormore removable fasteners. The right host rail 123 is fastened to theright side wall 107 of the GPU host head 100 via one or more removablefasteners. According to one example, the removable fasteners are screws.

The bracket rails 124, 125 include a left bracket rail 124 and a rightbracket rail 125. The left bracket rail 124 is fastened to the leftbracket 120, and the right bracket rail 125 is fastened to the rightbracket 121. Both bracket rails 124, 125 are fastened via one or morepermanent fasteners. According to one example, the permanent fastenersare rivets.

The GPU server unit 104 includes a cable management arm (CMA) 126 thatis attached on the top surface 114 of the GPU system 102, near a rearsurface 117 of the GPU system 102. The GPU server unit 104 furtherincludes an enclosure cover 128 that is mounted over the CMA 126. Theenclosure cover 128 has a general C-shape with two sides 130, 131attached to respective rear ends 132, 133 of the pair of L-shaped framebrackets 120, 121.

The GPU server unit 104 further includes a power supply unit (PSU) cage134 that is attached generally between the GPU host head 100 and the GPUsystem 102. The PSU cage 134 overlays a majority of the top surface 114of the GPU system 102. The GPU server unit 104 further includes a harddisk drive (HDD) cage 136 that is attached near the rear surface 117 (inFIG. 1 ) of the GPU system 102.

The GPU host head 100 includes a movable cover 138 that swings between aclosed position and an open position. In the open position (illustratedin FIG. 4 ), one or more fans 140 are exposed from within the GPU hosthead 100. As such, in the open position the fans 140 can be retrieved(e.g., replaced) for maintenance or other purposes. In the closedposition, the movable cover 138 protects the fans 140 when mountedwithin the GPU host head 100.

Referring to FIG. 5 , the GPU host head 100 is integrated with the GPUsystem 102 such that the GPU host head 100 moves independently, relativeto the GPU system 102. Specifically, the host rails 122, 123 arefrictionally movable, relative to the brackets 120, 121. Because thehost rails 122, 123 are fixed to the GPU host head 100 and the brackets120, 121 are fixed to the GPU system 102, the GPU host head 100 isslideable relative to the GPU system 102.

Specifically, the GPU host head 100 is slideable in a direction parallelto the depth dimension D towards the front surface 110, exposing a reararea 142 above the GPU system 102. When the GPU host head 100 is drawnout, the CMA 126 is attached or detached, as needed, for managementpurposes of cables 144.

Referring to FIGS. 6 and 7 , the CMA 126 is attached to the rear area142 of the GPU system 102. The CMA 126 is fixed to the top surface 114of the GPU system 102 using a fastener, such as a plunger.

Referring to FIGS. 8-10 , the GPU server unit 104 is installed in aframe rack 146. The mounting assembly 118 facilitates, for example,drawing out the GPU host head 100 for performing maintenance (e.g.,servicing of fans 140). The mounting assembly 118 allows slidingmovement of the GPU host head 100 relative to the GPU system 102. Thedrawing out of the GPU host head 100 is further facilitated by the CMA126, which allows flexible routing of internal cables 144.

After drawing out the host head 100, as illustrated specifically in FIG.9 , the movable cover 138 is opened to reveal the fans 140. Then,maintenance personnel is able to remove or otherwise service the fans140.

Referring to FIGS. 11-13 , access to one or more of the fans 140 isprovided via the movable cover 138. The movable cover 138 includes alatch 148 that has a locked position and an unlocked position. In thelocked position, the movable cover 138 is in its closed position inwhich the movable cover 138 is generally planar with the top surface 108of the GPU host head 100. In the locked position, the movable cover 138is temporarily fixed to the top surface 108 of the GPU host head 100. Inthe unlocked position of the latch 148, the movable cover 138 isreleased from being fixed to the top surface 108 of the GPU host head100. When released, the movable cover 138 is now able to swing in aclockwise orientation away from the front surface 110 of the GPU hosthead 100. The swinging (or rotation) of the movable cover 138 isfacilitated by and is around a rotation shaft 150. The opening of themovable cover 138 exposes the internal fans 140, which are consequentlyready for service.

Referring generally to FIGS. 14-20 , a cable routing path is provided toallow cables 144 (e.g., internal mini-SAS HD cables) to pass internallythrough the chassis of the GPU system 102, and then to be plugged intothe GPU host head 100. Initially, referring specifically to FIG. 14 ,the cables 144 are initially plugged into a switch board 152. Then, thecables 144 are routed through the HDD case 136 (as illustratedspecifically in FIG. 15 ) and the PSU cage 134 (as illustratedspecifically in FIG. 16 ). The HDD cage 136 is configured to protectinternal components generally related to hard disk drives. The PSU cage134 is configured to protect internal components generally related topower supply units.

Then, referring specifically to FIG. 17 , the PSU cage 134 is set inplace, along with a top cover 154. Any surplus cable length is managedvia the CMA 126. Then, referring specifically to FIG. 18 , the cables144 are plugged into the GPU host head 100.

After completing the routing of the cables 144, the enclosure cover 128is installed (as illustrated specifically in FIG. 19 ) to hide from viewthe cables 144 and the CMA 126. The two sides 130, 131 of the enclosurecover 128 include spring latches 156 for removably attaching theenclosure cover 128 to the respective rear ends 132, 133 of the pair ofL-shaped frame brackets 120, 121. The spring latches 156 are generallyidentical to each other. The view of FIG. 19 only shows a right one ofthe spring latches 156 clearly.

Referring specifically to FIG. 20 , the right one of the spring latches156 is illustrated showing a grasp tab 158 that is movable in adirection along the width dimension W. The grasp tab 158 is coupled toan intermediate portion 160 that provides a springing motion to thespring latch 156. Manual movement of the spring latch 156, by holdingthe grasp tab 158, in a direction external to the GPU server 104releases the enclosure cover 128. Then, the natural spring motionprovided by the intermediate portion 160 returns the spring latch 156 toa securing position in which the enclosure cover 128 is typicallyattached to a respective bracket 120, 121.

The foregoing description of the embodiments, including illustratedembodiments, has been presented only for the purpose of illustration anddescription and is not intended to be exhaustive or limiting to theprecise forms disclosed. Numerous modifications, adaptations, and usesthereof will be apparent to those skilled in the art.

Although the disclosed embodiments have been illustrated and describedwith respect to one or more implementations, equivalent alterations andmodifications will occur or be known to others skilled in the art uponthe reading and understanding of this specification and the annexeddrawings. In addition, while a particular feature of the invention mayhave been disclosed with respect to only one of several implementations,such feature may be combined with one or more other features of theother implementations as may be desired and advantageous for any givenor particular application.

While various embodiments of the present invention have been describedabove, it should be understood that they have been presented by way ofexample only, and not limitation. Numerous changes to the disclosedembodiments can be made in accordance with the disclosure herein,without departing from the spirit or scope of the invention. Thus, thebreadth and scope of the present invention should not be limited by anyof the above described embodiments. Rather, the scope of the inventionshould be defined in accordance with the following claims and theirequivalents.

The terminology used herein is for the purpose of describing particularembodiments only, and is not intended to be limiting of the invention.As used herein, the singular forms “a,” “an,” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. Furthermore, to the extent that the terms “including,”“includes,” “having,” “has,” “with,” or variants thereof, are used ineither the detailed description and/or the claims, such terms areintended to be inclusive in a manner similar to the term “comprising.”

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art. Furthermore, terms, such as those definedin commonly used dictionaries, should be interpreted as having a meaningthat is consistent with their meaning in the context of the relevantart, and will not be interpreted in an idealized or overly formal senseunless expressly so defined herein.

1-20. (canceled)
 21. A graphics processing unit (GPU) server comprising:a GPU host head having one or more host graphics processing units(GPUs); a GPU system having a plurality of system GPUs that are separatefrom the host GPUs, the GPU system having a chassis configured toreceive internally a plurality of cables; a power supply unit (PSU) cageattached between the GPU host head and the GPU system, the PSU cageoverlaying over a majority of a top surface of the GPU system; a harddisk drive (HDD) cage attached to a rear surface of the GPU system; acable routing path configured to pass sequentially through the PSU cage,the HDD cage, and ending at the GPU host head; and a cable managementarm (CMA) attached on a top surface of the GPU system, the CMA beingconfigured to receive any surplus cable length of the plurality ofcables.
 22. The GPU server of claim 21, wherein the CMA is attached neara rear surface of the GPU system.
 23. The GPU server of claim 21,further comprising a mounting assembly that integrates the GPU host headand the GPU system into a single GPU server unit, the mounting assemblyincluding a pair of L-shaped frame brackets via which the GPU host headis mechanically connected to the GPU system.
 24. The GPU server of claim23, wherein the pair of L-shaped frame brackets includes a left bracketand a right bracket.
 25. The GPU server of claim 23, further comprising:a pair of host rails with each host rail fastened to a respective sidewall of the GPU host head via one or more removable fasteners; and apair of bracket rails with each bracket rail fastened to a respectiveone of the pair of L-shaped frame brackets via one or more permanentfasteners.
 26. The GPU server of claim 25, further comprising a pair ofbracket rails with each bracket rail fastened to a respective one of thepair of L-shaped frame brackets via one or more permanent fasteners. 27.The GPU server of claim 21, further comprising an enclosure covermounted over the CMA, the enclosure cover being configured to hide fromview the plurality of cables and the CMA.
 28. The GPU server of claim27, wherein the enclosure cover has two sides attached to respectiverear ends of the pair of L-shaped frame brackets.
 29. The GPU server ofclaim 28, wherein the enclosure cover further includes two springlatches configured to removably attach the enclosure cover to therespective rear ends of the pair of L-shaped frame brackets.
 30. The GPUserver of claim 21, wherein the GPU host head has a movable cover thatswings between a closed position and an open position, the movable coverprotecting in the closed position one or more fans mounted within theGPU host head.
 31. The GPU server of claim 30, wherein the movable coverincludes a latch that has a locked position and an unlocked position.32. The GPU server of claim 30, wherein the movable cover swings along arotation shaft that is mounted to a top surface of the GPU host head.33. A method for assembling a graphics processing unit (GPU) server, themethod comprising: providing a GPU host head with one or more hostgraphic processing units (GPUs); providing a GPU system with a pluralityof system GPUs that are separate from the host GPUs; providing a powersupply unit (PSU) cage that is attached between the GPU host head andthe GPU system, the PSU cage overlaying over a majority of a top surfaceof the GPU system; providing a hard disk drive (HDD) cage that isattached to a rear surface of the GPU system; routing a plurality ofcables via a cable routing path from a switchboard to the GPU host head,the cable routing path passing, sequentially, through the PSU cage, theHDD cage, and ending at the GPU host head; and receiving any surpluscable length of the plurality of cables in a cable management arm (CMA)that is attached on a top surface of the GPU system.
 34. The method ofclaim 33, further comprising: attaching a first L-shaped frame bracketto a first side of the GPU host head; and attaching a second L-shapedframe bracket to a second side of the GPU host head.
 35. The method ofclaim 34, further comprising: removably fastening a first host railbetween the first L-shaped frame bracket and the first side of the GPUhost head; and removably fastening a second host rail between the secondL-shaped frame bracket and the second side of the GPU host head.
 36. Themethod of claim 33, further comprising mounting an enclosure cover overthe CMA.
 37. The method of claim 33, further comprising mounting amovable cover to a top surface of the GPU host head, the movable coverrotating between a closed position and an open position.
 38. The methodof claim 33, further comprising integrating via a mounting assembly boththe GPU host head and the GPU system into a single GPU server unit.